Marvair 20173A Defrost Control Board 326058-758 it is rated for a

it is rated for a 200

Utilizing genuine York furnace parts like this wire assembly ensures that the electrical load stays within the design parameters of the integrated control module

For a 7/8 inch suction line

allowing the system to restore furnace ignition sequence once safe temperatures are reached

Marvair 20173A Defrost Control Board 326058-758 it is rated for aThe Marvair 20173A Defrost Control Board is the essential HVAC replacement part designed specifically for Marvair heat pump systems requiring reliable defrost cycle management. As the direct replacement for the legacy 20173 board, this updated component integrates seamlessly into existing control panels to manage evaporator coil icing in low ambient conditions. For technicians performing heat pump troubleshooting, the 20173A provides precise timing